2015397890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{971}}^1\times {\mathrm{18869}}^1$

素因数の和:19858

約数の個数: 32

約数和(自身を含む): 3961794240

約数和(自身を除く): 1946396350

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 971, 1942, 4855, 9710, 10681, 18869, 21362, 37738, 53405, 94345, 106810, 188690, 207559, 415118, 1037795, 2075590, 18321799, 36643598, 91608995, 183217990, 201539789, 403079578, 1007698945, 2015397890]

約数ペア:

[(1, 2015397890), (2, 1007698945), (5, 403079578), (10, 201539789), (11, 183217990), (22, 91608995), (55, 36643598), (110, 18321799), (971, 2075590), (1942, 1037795), (4855, 415118), (9710, 207559), (10681, 188690), (18869, 106810), (21362, 94345), (37738, 53405)]